CBS snagged a 7.8 rating/13 share, drawing in an estimated 12.7 million viewers. Second-place FOX nabbed a 5.1/9 with NBC's 5.0/9 on its heels. ABC finished with a 3.4/6, while The CW had a 1.3/2.

In the adult demo, however, it was a draw between CBS and NBC, both doing a 3.3 rating for viewers 18-49. In third, FOX had a 2.9, followed by ABC's 1.3 and The CW's measly 0.7.

CBS kicked off the ratings mastery at 8 p.m. with "Survivor: Tocantins," 6.7/12. FOX came in second for the hour with a 5.6/10 for "Bones," while NBC took third averaging a 4.4/8 for "The Office" and premiere of "Parks and Recreation" combined. The comedy duo of "In the Motherhood" and "Samantha Who?" averaged 3.2/6 for the hour, while a "Smallville" repeat trailed on The CW.

At 9 p.m., "CSI" kept the ratings ball rolling with a meaty 9.9/16 for CBS. The hour's second place was tied between FOX's "Hell's Kitchen" and NBC's "Office"/"30 Rock" combo, all averaging a 4.5/7. A repeat of "Grey's Anatomy" got a 3.8/6 for ABC, still ahead of the "Supernatural" repeat on The CW.

Finally, CBS' ratings hat trick finished with a 6.7/12 for the debut of the murder mystery "Harper's Island" in the 10 o'clock hour. It bested NBC's premiere of "Southland," 6.2/11 (although NBC did better in the adult demo this hour). ABC's "Private Practice" rerun was last with a 3.2/6.

Ratings information is taken from fast national data, which includes live and same-day DVR viewing. All numbers are preliminary and subject to change.